Collar can collar and method of mounting same



Dec. 23, 1947. J. COYLE ET AL COLLAR CAN COLLAR AND METHOD OF MOUNTINGSAME 2 Sheets-Sheet 1 Filed June 30, 1944 Summer- B ZJZZZzJ m EPuni-eDec. 23, 1947. COYLE ET AL 2,433,031

COLLAR CAN COLLAR AND METHOD OF MOUNTING SAME Filed June 30, 1944 2SheetsSheet 2 '1 'm 6202 V 9 E I A 'IIIIII,

v A m w J6? J9 7 (91 32 Lia/in mammipu l (Ittorneg 6 Juventors PatentedDec. 23, 1947 COLLAR CAN COLLAR ANDMET'HOD OF MOUNTING SAME John Coyle,Baltimore, Md., and William .Punte, Passaic, N. J., assignorstoContinental Can Company, Inc., New

ration of New York York, N. *Y.,- a corpo- Application June 30, 1944,Serial No. 542,961

6 Claims.

The invention relates generally to metallic receptacles, and moreparticularly to the type known as collar cans wherein are provided tearstrip structures adapted to be wound on keys and by thismeans torn outof the body walls of the cans in order to effect an opening thereof,

and it primarily .seeks to provide a novel collar structure for suchcans and a novel method of mounting the collars in the cans.

In cans of the typestated the tear strips usually are defined byparallel score lines which surround the cans adjacenttheupper endclosures thereof, and a collaris snugly fitted within the upper end ofeach can in position for extending upwardly fromthe upper extremity ofthe can body resultingfrom the tearing out of the rip strip, thereby tomaintain thedesired .can bodywall height and provide a supportneck overwhich theskirt or body wall portion remaining attached .to the upper endclosure can be telescoped to effect a reclosure of the can. It is thepurpose of the present invention to provide a novel form of collarof thecharacter stated and a novel method .of mounting the same, said collarincluding an annular sheet metal .body having an inwardly curled bead ateachof its upper and lower edges .and a plurality .of circumferentialslits disposed equidistantly about the-body opposite the lower beadthereof and having lower slit defining edge portions corrugated topresent a plurality of humps inwardly towardsaid lower bead at theposition of each said slit, and said method con sisting in inserting thecollar into the upper end 'of the-can body so that the upper and lowercollar beads extend'above and below thecan body tear strip and thenflattening the lower collar bead in amanner for causing the corrugatededge portions to be displaced outwardly beyond the outer diameter of thecollar thereby to present at least one hump at the position of .eachslit in collar anchoring contact with the can body;

Another object of the invention is to provide a collar can collar.mounting structure of the character stated in which the can .isprovided with an S-shaped bead structure just below its tear strip andcomposed of an upper outwardly directed bead portion into which theoutwardly presented collar humps interlock in anchoring the collar inthecan, and a lower inwardly .directed bead portion forming a seat onwhich the collar rests in a manner for being supported.

against movement downwardly in the can.

With the above and other objects in view that willhereinafter appear,the nature of the invention will be more clearlyunderstood by referenceto the following detailed description, the appended claims, and theseveral views illustrated in the accompanying drawings.

In the drawings:

Figure 1 is a part side elevation and part vertical cross sectional viewof a can embodying ,the invention.

Figure 2 is an enlarged fragmentary sectional View illustrating thecollar inserted in the can body prior to the flattening of the lowercollar bead.

Figure 3 is a View similar to Figure 2, the lower collar bead beingillustrated as flattened to eifect an anchoring of the collarin the canbody.

Figure 4 is a vertical cross section of the collar per se, prior to theformation of the lower bead thereon.

Figure 5 is a view similar to Figure 4 illustrating the completedcollar.

Figure 6 is an enlarged fragmentary horizontal sectional View taken onthe line 65 on Figure 5.

Figure '7 is a view similar to Figure 6, the section being taken on theline 1-! onFigure 3.

Figure 8 is a vertical cross sectional view illustrating the stepof"fiattening the lower bead and anchoring the collar in the can body,suitable bead flattening apparatus being illustrated.

In the example of embodiment of the invention herein disclosed, thecollar is shown as mounted ina can comprising a body 5, a lower endclosure Band an upper end closure 1. The can body is provided adjacentits upper end with a bead structure comprising an outwardly extendedupper bead portion 8 and an inwardly extended lower bead portionll. Justabove the S-shaped bead portiont, 9 the .can body is scored in themanner well known in the art to provide a tear strip it which when woundabout a key may be torn out of the can body to separate the main portionof the body from the upper extremity thereof and effect an opening ofthe can. When the tear strip ill is torn out in the manner stated, askirt I I is left attached to the upper end closure 1', and this skirtis adapted to be telescoped over the collar which projects from theupper extremity'of the main can body in order to effect a reclosure ofthe can.

The improved collar is shown in detail in Fig- .ures 4 to 6. Thi collarmay take the form of a continuous drawn ring, orthe cylindriform sheetmetal body may be shaped from a band having it endscverlapped andconnected in the manner illustrated inFigures 4 and 5. When the collar.isiormed in the manner herein disclosed, it is shaped from a sheetmetal band to provide a cylindriform body l2, the ends of the band beinglapped as at l3 and secured together by passing tongues 14 formed onone'end of the strip through an aperture I in the other end of the stripand then upsetting the tongues. The upper and lower edge portions of oneof the lapped strip ends are notched as at It so as to avoid provisionof double thicknesses of metal at the upper and lower edge portions ofthe collar at which curled beads are to be formed. One such inwardlycurled bead I1 is provided at the upper edge extremity of the collar,and another inwardly curled bead I8 is formed at the lower extremity ofthe collar.

It will be apparent by reference to Figures 4 and 5 of the drawings thatthe collar body I2 is provided with a plurality of equidistantly spacedcircumferential slits l9, eight such slits being shown in the presentdisclosure, and the lower slit defining edge portions are corrugated toprovide a set of three inwardly directed humps 20 at the position ofeach circumferential slit. It will be apparent by reference to Figure 4that the slits and corrugations are formed before the lower bead I8 isformed, and the formation of the lower, inwardly curled bead IS in themanner illustrated in Figure 5 completes the collar.

After the collar is completed in the manner above described, it isinserted in the upper end of the can body in the manner illustrated inFigure 2 from which it will be apparent that the upper and lower edgeextremities of the collar extend above and below the tear strip It] withthe lower inwardly curled bead l3 resting as at 2| on the lower inwardlydirected can body bead portion 9.

After the collar has been inserted in the can body in the positionillustrated in Figure 2, it is securely anchored in the can body byoperation of a suitable apparatus illustrated in Figure 8 and generallydesignated 22. This apparatus includes a split support ring 23 whichencircles the upper portion of the can body, and a. head ring 24 havingan outwardly extended flange 25 for resting on the support ring 23. Abottom ring 25 is secured in spaced relation below the head ring 24 byspaced sleeves 21 and screws 28, and the bottom ring 26 is bevelled atits outer edge as at 29 and is so dimensioned as to be spaced wellwithin the can body bead portion 9. A plurality of radially movablepressers 30 are interposed between the head ring 24 and the bottom ring26, and each is provided with a slot 3| to permit freedom of movementrelative to the respective spacer sleeve 21. Each presser member 30includes a lower bead flattening wall portion 32 and an upper beadclearance 33.

A presser member expander head 34 ls provided and is mounted for alimited amount of upward and downward movement with relation to the headring 24 on headed screws 35, said expander head being normally held inspaced relation above the head ring 24 by compression springs interposedbetween said head and ring. The expanding head 34 includes a centrallydepending hub having a coniform end extension 31 engageable with thebevelled ends 38 of the presser member 30. The presser members 39 areheld retracted by a retractile coil spring ring 39 which is mounted in agroove ll! formed in the under surfaces of the presser members.

It will be apparent by reference to Figure 8 of the drawings that thesupport ring 23 may be applied to embrace and support the upper portionof the can body, after which the remainder of the collar anchoringapparatus can. be i fllted in the upper end of the can body in themanner illustrated in Figure 8 with the head ring flange 25 resting onthe support ring 23. At the time of the initial insertion of theapparatus in the upper end of the can body, the expander head 34 will beelevated above the head ring 24 and the presser members 3i] will beretracted, thereby to permit ready insertion of said presser memberswithin the upper and lower beads l8 and IQ of the collar. After theapparatus has been thus inserted in the upper end of the can body, theexpanding head 34 is depressed to cause the coniform end extension 31thereof to engage the bevelled inner ends 38 of the presser members 30and press them outwardly to the position illustrated in Figure 8.Outward forcing of the presser members 30 to the position illustrated inFigure 8 causes the presser members to engage the inwardly curled lowercollar bead l8 and flatten the same in the manner illustrated in Figures3 and 8. This flattening of the bead transforms the bead into a hem 4|,and engagement of the flattened head or hem wall with the inwardlydirected corrugation humps 20 causes the corrugated parts to be forcedoutwardly in a manner for presenting two humps 42 outside the externaldiameter of the collar body I2 and into position in the upper outwardlydirected can body bead portion 8 in the manner clearly illustrated inFigure 3. This engagement of the humps 42 as at 43 under the outwardlydirected shoulder provided by the upper can body bead portion 8 servesto securely anchor the collar in the position illustrated in Figure 3with the lower edge of the hem 4| resting as at 44 on the lower can bodybead portion 9. In this manner the collar is securely anchored againstupward movement by the engagement of the humps 42 as at 43 in the uppercan body bead portion 8, and against downward movement by engagement ofthe lower extremity of the hem M with the lower can body bead portion 9as at 44.

While one form of the invention has been shown for purposes ofillustration, it is to be clearly understood that various changes in thedetails of construction and arrangement of parts may be made withoutdeparting from the spirit and scope of the invention as defined in theappended claims.

We claim:

1. A collar for a collar can comprising an annular sheet metal bodyhaving an inwardly curled bead at each of its upper and lower edgeportions and a plurality of circumferential slits disposed about thebody opposite the lower bead and having lower slit defining edgeportions corrugated in a manner for presenting a plurality of humpsextending inwardly from said body toward said lower bead at the positionof each slit whereby upon flattening of said lower bead against saidbody without obstruction of the corrugated portions from without thebody the flattened bead wall will engage the inwardly directed humps andcause at least one hump of each corrugated portion to be presentedoutwardly of the outer diameter of the body for collar anchoringengagement with a can body in which the collar is inserted.

2. In a sheet metal container, a container body portion, an upper endclosure seamed onto the body portion, said body portion below andadjacent said closure being scored to provide a tear strip and having anoutwardly directed shoulder portion, and a collar snugly fitting with inthe container body and having a main body portion lying opposite andextending above and below the tear strip and terminating at its upperextremity in an inwardly turned edge, said collar body portion having aplurality of circumferentially spaced slits and lower corrugated slitdefining edge portions with corrugations of said slit defining edgeportions projecting outwardly beyond the collar body portion andengaging under the can body shoulder portion and said collar body havingat its lower extremity a wall opposing and engaging the corrugatedportions and holding said shoulder engaging corrugations in theiroutwardly projected position.

3. A structure as defined in claim 2 in which the corrugation opposingwall comprises an integral part of the collar body in the form of a hem,and the container body is provided with an inwardly directed head onwhich said hem rests in a manner preventing downward movement of thecollar in the can body.

4. A structure as defined in claim 2 in which the container body portionis provided with an S-shaped bead structure comprising an upperoutwardly directed bead portion providing the shoulder under which thecollar corrugations engage for securely anchoring the collar in thecontainer, and a lower inwardly directed bead portion on which the lowerextremity of the collar rests in a manner for cooperating with theanchoring corrugations in securing the collar against movement upwardlyor downwardly in the container.

5. In the method of mounting a collar in a collar can body having anoutwardly directed bead therein, said collar comprising an annular sheetmetal body having an inwardly curled bead at its lower edge portion anda plurality of circumferentially extending and spaced slits about saidcollar body opposite said collar bead and having lower slit definingedge portions each corrugated to present a plurality of humps inwardlytoward said collar bead and at least one hump disposed between andconnected with two of the inwardly directed humps and directed outwardlytoward the can body bead at the position of each slit, all said humpsnormally lying within the outside diameter of the collar body, the stepsof inserting the collar in the can body in position for presenting thecollar bead and humps opposite the can body bead, and flattening saidcollar bead against the collar body and said inwardly directed humps toconform to the contour of the collar body and force the corrugated lowerslit defining edge portions outwardly into the can body bead to causethe outwardly directed hump of each corrugated lower slit defining edgeportion to project outwardly into the can body bead beyond 6 the outerdiameter of the collar body for anchoring engagement in said can bodybead.

6. In the method of mounting a collar in a collar can body having anS-shaped bead structure therein including an upper outwardly directedbead portion and a lower inwardly di rected bead portion, said collarcomprising an annular sheet metal body having an inwardly curled bead atits lower edge portion and a plurality of circumferentially extendingand spaced slits about said collar body opposite said collar bead andhaving lower slit defining edge port-ions each corrugated to present aplurality of humps inwardly toward said collar bead and at least onehump disposed between and connected with two of the inwardly directedhumps and directed outwardly toward the upper outwardly directed canbody bead portion at t p n of each slit, all said humps normally 1yingwithin the outside diameter of the collar body, the steps of insertingthe collar in the can body in position for presenting the collar beadand humps opposite the upper outwardly directed can body bead portionand said collar against the lower inwardly directed can body beadportion, and flattening said collar bead against the collar body andsaid inwardly directed humps to conform to the contour of the collarbody and force the corrugated lower slit defining edge portionsoutwardly into the upper outwardly directed can body bead portion tocause the outwardly directed hump of each corrugated lower slit definingedge portion to project outwardly into the upper outwardly directed canbody bead portion beyond the outer diameter of the collar body foranchoring engagement in said upper outwardly directed can body beadportion.

JOHN COYLE.

WILLIAM F. PUNTE.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,849,768 Punte Mar, 15, 19321,898,643 Peters Feb. 21, 1933 1,811,106 Aulbach June 23, 1931 1,902,664Punte Mar. 21, 1933 2,262,066 Taylor Nov. 11, 1941 2,295,540 Begg Sept.15, 1942 2,128,953 Miller Sept. 6, 1938 1,825,596 Kronquest Sept. 29,1931 1,839,435 Widell Jan. 5, 1932

